Hydraulics

Question 1

Refer to the refill indication (RF) right of the hydraulic system quantity indication
displays:
a) Automatically when the hydraulic quantity is below 88% in either system A or B.
b) At all times.
c) When Hydraulic quantity is below 76% in either system A and/or B and the airplane is
on the ground with both engines shutdown, or after landing with flaps UP during taxiin.

d) Only during MASTER CAUTION SYSTEM recall.

Answer 1

c) When Hydraulic quantity is below 76% in either system A and/or B and the airplane is
on the ground with both engines shutdown, or after landing with flaps UP during taxiin.

Question 2

If a leak occurs in the standby system, system B fluid indication will decrease to
approximately:
a) 0.
b) 64%.
c) 72% full.
d) A leak in the standby system has no effect on the reservoir quantity for system B.

Answer 2

c) 72% full.

Question 3

The Power Transfer Unit (PTU) provides a backup source of hydraulic pressure to
operate the:
a) Training edge flaps.
b) Landing gear.
c) Auto slats and leading edge flaps and slats.
d) Outboard spoilers.

Answer 3

c) Auto slats and leading edge flaps and slats.

Question 4

The auto slat system:

a) Is normally powered by hydraulic system B.
b) Uses hydraulic system A pressure.
c) Uses hydraulic system A fluid.
d) Uses standby hydraulic system fluid.

Answer 4

a) Is normally powered by hydraulic system B.

Question 5

Pulling the #2 engine fire warning switch, shuts off hydraulic fluid to the:

a) Electric pump in system B.
b) Engine driven pump in system B.
c) Electric pump in system A.
d) Engine driven pump in system A.

Answer 5

b) Engine driven pump in system B.

Question 6

The standby hydraulic system powers the:

a) Outboard spoilers, rudder and thrust reversers.
b) Leading edge devices, rudder, thrust reversers and standby yaw damper.
c) Inboard spoilers, rudder and thrust reversers.
d) Alternate brakes, rudder, thrust reversers and standby yaw damper.

Answer 6

b) Leading edge devices, rudder, thrust reversers and standby yaw damper.

Question 7

. What is an indication of a leak in the standby hydraulic system?

a) Decrease in system A quantity.
b) The LOW QUANTITY light illuminates.
c) Illumination of the system A LOW PRESSURE lights.
d) Illumination of the system B LOW PRESSURE lights.

Answer 7

b) The LOW QUANTITY light illuminates.

Question 8

The amber standby hydraulic system LOW PRESSURE light is armed:
a) At all times.
b) Only when the FLT CONTROL switch is moved to STBY RUD.
c) Only when the ALTERNATE FLAPS switch is moved to ARM.
d) Only when the standby pump operation has been selected or automatic standby
function is activated.

Answer 8

d) Only when the standby pump operation has been selected or automatic standby
function is activated.

Question 9

Which of the following actions will affect hydraulic quantity indications?

a) Flaps are extended from 15 to 30.
b) Landing gear is extended.
c) Leading edge devices are extended.
d) Both B and C are correct.

Answer 9

d) Both B and C are correct.

Question 10

The amber LOW PRESSURE light for the #1 engine driven hydraulic pump

illuminates. Which actions should be carried out? (QRH?)
a) Position the hydraulic pump switch to OFF.
b) Pull the #1 engine fire-warning switch.
c) Disconnect the #1 CSD.
d) Monitor system A and B pressure.

Answer 10

a) Position the hydraulic pump switch to OFF.

Question 11

.What is the minimum limiting amount of fuel in the main tanks for ground use of
the hydraulic pumps?
a) 453 kg in the related main tank.
b) 762 kg in both main tanks.
c) 760 kg in the related main tank.
d) 760 kg in the center tank.

Answer 11

c) 760 kg in the related main tank.

Question 12

The system B engine driven pump supplies the volume of hydraulic fluid needed to
operate the landing gear transfer unit when which of the following conditions
exist?
a) Airborne and either main landing gear is not up and locked.
b) #1 engine drops below a limit value.
c) Landing gear lever positioned UP.
d) All of the above.

Answer 12

d) All of the above.